31332120112 has 20 divisors (see below), whose sum is σ = 62664241216. Its totient is φ = 15160703040.

The previous prime is 31332120101. The next prime is 31332120121. The reversal of 31332120112 is 21102123313.

31332120112 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 31332120112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31584303 + ... + 31585294.

Almost surely, 2^31332120112 is an apocalyptic number.

It is an amenable number.

31332120112 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31332120112 is a wasteful number, since it uses less digits than its factorization.

31332120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63169636 (or 63169630 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31332120112 its reverse (21102123313), we get a palindrome (52434243425).

The spelling of 31332120112 in words is "thirty-one billion, three hundred thirty-two million, one hundred twenty thousand, one hundred twelve".